CN103377632B - Display device - Google Patents
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- CN103377632B CN103377632B CN201310124953.4A CN201310124953A CN103377632B CN 103377632 B CN103377632 B CN 103377632B CN 201310124953 A CN201310124953 A CN 201310124953A CN 103377632 B CN103377632 B CN 103377632B
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- lighting unit
- display device
- end side
- light
- illuminator
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Abstract
The present invention provides a kind of display device, including：Transmission display device, has the viewing area of sequential scan；And illuminator, it is arranged on this display device back side, including multiple lighting units, the plurality of lighting unit is arranged along the direction that this viewing area is sequentially scanned and is arranging on end side to the direction of another end side.After the sequential scan of the display unit of the part completing including the viewing area corresponding to this lighting unit, lighting unit is in luminance in predetermined light period, and this lighting unit is sequentially scanned towards another end side from end side according to the sequential scan of this viewing area.The length of the waiting time lighting to this lighting unit corresponding from the sequential scan completing this display unit is set as at least the region positioned at end side non-linearly being reduced according to the order scanning this lighting unit.
Description
Technical field
The present invention relates to display device.
Background technology
For example, JP-A-2000-321551（Patent document 1）Have been disclosed for a kind of display device, it is configured to and scans
The transmission display device synchronous scanning full run-down type illuminator of such as display panels（direct-under type
lighting device）, sequentially to switch between light-emitting zone and non-luminous region.When using such display device,
Can drive in maintenance and in display device, reduce obscuring in moving image（blur）, therefore to improve the display matter of moving image
Amount.
Content of the invention
In the illuminator that border between light-emitting zone and non-luminous region is visually clearly identified wherein, pass through
Scan this illuminator and see bright line or concealed wire near border, this leads to the brightness irregularities in image to be shown.Thus,
Illuminator is typically designed to make the light from the light source transmitting corresponding to light-emitting zone also to reach non-luminous region to a certain degree.
However, due to without completing the viewing area rewriteeing also by the light radiation from illuminator, occurring wherein continuous two
The phenomenon that in frame, image is visually recognized with overlapping state, this deteriorates image stalling characteristic.
In view of above scenario, it is desirable to provide the display device of image stalling characteristic deterioration can be suppressed.
Embodiments of the invention are directed to display device, the viewing area that this display device includes having sequential scan saturating
The illuminator penetrated formula display device and be arranged on the display device back side, illuminator includes multiple lighting units, the plurality of
Lighting unit be arranged along direction that wherein viewing area is sequentially scanned from end side towards another end side
Direction on arrange, the display unit of the wherein part in the viewing area including corresponding to lighting unit for the lighting unit completes suitable
Be in luminance after sequence scanning in predetermined light period, and lighting unit according to the sequential scan of viewing area from one
End side is towards another end side sequential scan, and lights to corresponding lighting unit from the sequential scan completing display unit
Waiting time length be set as at least in the region positioned at end side according to scanning lighting unit order non-thread
Property reduce.
In display device according to embodiments of the present invention, send out to corresponding lighting unit from completing sequential scan display unit
The length of the waiting time of light is set as non-according to the order of scanning lighting unit at least in the region positioned at end side
Linear reduction.Thus, or even also reduce from illuminating device luminous degree in the region not completing display floater rewriting.Knot
Really, the deterioration of image stalling characteristic can be suppressed.
Brief description
Fig. 1 is display device according to the first embodiment perspective schematic view under virtual released state；
Fig. 2A is the schematic plan view of illuminator；
Fig. 2 B is schematic sectional view in the state of cutting open along the line A-A of Fig. 2A for the illuminator；
Fig. 3 is the concept map of the display device according to first embodiment；
Fig. 4 is the schematic diagram for display device scanning is described；
Fig. 5 is for the schematic diagram with reference to illuminator scanning in example is described；
Fig. 6 is the signal of the illuminator Luminance Distribution obtaining during the light source luminescent illustrating corresponding to the first row lighting unit
Property figure line；
Fig. 7 is to illustrate when corresponding to the（Q/2）The brightness of the illuminator obtaining during the light source luminescent of row lighting unit divides
The schematic figure line of cloth；
Fig. 8 is showing corresponding to the light source luminescent of lighting unit and relation between the Luminance Distribution of illuminator for explanation
Meaning property figure line；
Fig. 9 is the illuminator of the irradiation display unit illustrating to obtain when the light period of the first row lighting unit starts
Luminance Distribution schematic figure line；
Figure 10 is the illuminator of the irradiation display unit illustrating to obtain when the light period of Q row lighting unit starts
Luminance Distribution schematic figure line；
Figure 11 is the schematic diagram for explanation according to the illuminator scanning of first embodiment；
Figure 12 A be for explanation the scanning with reference to illuminator in example and between the waiting time relation schematic figure
Line；
Figure 12 B be for explanation according to the scanning of first embodiment illuminator and between the waiting time relation schematic
Figure line；
Figure 13 is to illustrate to be shown according to the irradiation that first embodiment obtains when the light period of the first row lighting unit starts
Show the schematic figure line of the Luminance Distribution of the illuminator of unit；
Figure 14 is the schematic diagram for explanation according to the illuminator scanning of the modified example of first embodiment；
Figure 15 is the conceptual display device of the modified example according to first embodiment；
Figure 16 is the schematic diagram for explanation according to the illuminator scanning of second embodiment；
Figure 17 A is the schematic figure line of the light period length for explanation according to the illuminator of first embodiment；
Figure 17 B is the schematic figure line of the light period length for explanation according to the illuminator of second embodiment；
Figure 18 A and 18B is for illustrating in second embodiment when the light period length of the lighting unit in end regions
It is set as the schematic figure line of characteristic variations obtaining when shortening further；
Figure 19 A and 19B is the schematic figure of the characteristic variations obtaining when the intensity variation of lighting unit for explanation
Line；
Figure 20 A is the schematic plan view for explanation according to the illuminator structure of the first example in 3rd embodiment；
Figure 20 B is for the schematic figure line that the driving current of the light source driving illuminator sets is described；
Figure 21 A is the schematic plan for explanation according to the illuminator structure of the second example in 3rd embodiment
Figure；
Figure 21 B is the schematic figure line for the change of the light source density of setting of illuminator is described；
Figure 22 is the schematic perspective under virtual decomposing state for the illuminator of the 3rd example according to 3rd embodiment
Figure；
Figure 23 A is the illuminator section for explanation according to the illuminator structure of the 3rd example in 3rd embodiment
Schematic plan view；
Figure 23 B is the schematic figure line for the change of the light source density of setting of illuminator is described；
Figure 24 be display device according to fourth embodiment virtual separately in the state of perspective schematic view；
Figure 25 is the concept map of the display device according to fourth embodiment；
Figure 26 is the partial cross section obtaining when optical fractionation device cuts along the virtual plane parallel to X-Y plane
Figure；
Figure 27 is the schematic diagram for condition to be met is described, this conditions permit is transmitted through the first open/close portion and divides
Pixel light towards viewpoint A in viewing areas1To A4Propagate；
Figure 28 is to be transmitted through the second open/close portion for explanation to divide and towards viewpoint A1To A4The light of the pixel propagated
Schematic diagram；And
Figure 29 is the schematic diagram being operated according to illuminator scanning and the optical fractionation device of fourth embodiment for explanation.
Specific embodiment
Below, refer to the attached drawing is illustrated display device according to embodiments of the present invention.The invention is not restricted to this embodiment,
But the various numerical value in embodiment and material draw and make example.In the following description, identical symbol is used for identical part
Or there is the part of identical function, and omit repetitive description.Explanation will be carried out in the following sequence.
1. the overall description of display device according to embodiments of the present invention
2. first embodiment
3. second embodiment
4. 3rd embodiment
5. fourth embodiment（Other）
[the overall description of display device according to embodiments of the present invention]
As described above, display device according to embodiments of the present invention includes the transmission-type with the viewing area of sequential scan
Display device and be arranged on illuminator on after display device, illuminator includes multiple lighting units, is set to
Arrange on from end side towards the direction of another end side along the direction that viewing area is sequentially scanned.Illumination is single
Unit is after the display unit completing the part that sequential scan includes the viewing area corresponding to lighting unit in predetermined light period
Inside be in luminance, and lighting unit according to the sequential scan of viewing area from end side towards another end side
Sequential scan.
As the transmission display device adopting in the embodiment of the present invention, for example, known display member can be adopted.Example
As transmissive liquid crystal panel.Display device can perform monochromatic display and colored display.In the following embodiments, active matrix
Transmissive liquid crystal panel is used as display device.
Display panels include having transparent common electrode front panel, have transparent pixel electrode rear board and
It is arranged on the liquid crystal material between front panel and rear board.The operator scheme of display panels is not particularly limited.For example, liquid
LCD panel can be by so-called TN（Twisted-nematic）Mode activated, can be by VA（Vertical orientation）Mode activated, and can be by IPS
（Change in face）Mode activated.
More specifically, front panel include by glass manufacture substrate, transparent common electrode in substrate is provided（Example
As ITO（Indium tin oxide））And the light polarizing film on the outer surface of substrate is provided.In the case of colored display, with by third
Olefin(e) acid resin or the coating of epoxy resin manufacture（overcoat layer）The color filter covering provides in substrate and transparent
Common electrode is formed on coating.Alignment film is formed on the transparent electrodes as needed.
Rear board is included by the substrate of glass manufacture, the switching device being formed in substrate and pixel electrode（For example, by
ITO manufactures）, the conductive /non-conductive of pixel electrode is by switching device control.Light polarizing film is provided on the outer surface of substrate.Orientation
Film is formed at as needed including in the whole surface of pixel electrode.
Forming various types of components of display panels and material can be known component and material.As derailing switch
Part, for example, such as thin film transistor (TFT)（TFT）3 end-apparatus parts and such as MIM（Metal-insulator-metal）Device, varistor device
Can be used as example with 2 end devices of diode.For example, scan line in the row direction and the signal extending in a column direction are extended
Line is connected to these switching devices.
As the Semitransmissive display device with reflection-type and two characteristics of transmission-type, for example, it is known that in pixel
There is reflection-type and the semitransmissive liquid crystal display panel of two viewing areas of transmission-type.Can be shown using such Semitransmissive
Device.That is, " transmission display device " inclusion " Semitransmissive display device ".
When the pixel in display device quantity M × N by（M,N）During expression, some resolution showing for image can
It is cited as（M,N）Value, it is specially VGA（640,480）、S-VGA（800,600）、XGA（1024,768）、APRC（1152,
900）、S-XGA（1280,1024）、U-XGA（1600,1200）、HD-TV（1920,1080）、Q-XGA（2048,1536）And
Further（3840,2160）、（1920,1035）、（720,480）With（1280,960）Deng however, the invention is not restricted to these
Value.
In a display device, the display unit with the part of viewing area corresponding to lighting unit consists essentially of row
The pixel of row given line number in a scanning direction.In each display unit, the quantity of pixel column is preferably identical, however, being not limited to
This.The type of illuminator is not particularly limited.For example, illuminator can be full run-down type structure, or can tie for edge-light type
Structure.
Illuminator preferably has three or more lighting units.One lighting unit preferably corresponds to the bag of viewing area
Include the part of at least 10 to 20 row.For the target of precise control, the quantity of preferably lighting unit is big.However, due to driving
The scale of the circuit of dynamic illuminator increases according to the quantity of lighting unit, and the quantity of lighting unit can be according to display device
Specification and design and select.
As the light source of lighting unit, for example, light emitting diode can be adopted（LED）, cold cathode ray fluorescent lamp and electroluminescent
Luminous（EL）Device.The target that dimension of light source is reduced, light emitting diode（LED）It is preferably used as light source.In the case, red
Light emitting diode, green light emitting diode and blue light emitting diode are formed as one group, and to obtain white light, or white light can be by poliosis light
Diode obtains（For example, by with fluorescent particles with reference to ultraviolet and blue light emitting diode the light emitting diode of the color that turns white）.?
In the case of the former, it may include transmitting the 4th color in addition to red, green, and blue, the light emitting diode of the 5th color ....
Illuminator can have optical component, for example, light diffusing sheet and light guide plate etc. in addition to above-mentioned light source
Optical function piece.Optical function piece is for example arranged on illuminator on the surface of display device.
As described above, in display device according to embodiments of the present invention, from completing the sequential scan of display unit to right
The length of the waiting time that the lighting unit answered lights is set as being shone according to scanning at least in the region positioned at end side
The non-linear reduction of order of bright unit.This length can be according to the order scanning lighting unit in the region positioned at end side
Non-linear reduction, or can be according to the non-linear reduction of order scanning lighting unit in the region positioned at another end side.
Further preferably this length is single according to scanning illumination in the region positioned at end side and the region positioned at another end side
The non-linear reduction of order of unit.
In the display device according to embodiments of the present invention including above-mentioned various preferred structures, from positioned at end side
Cycle of lighting to the lighting unit positioned at another end side time of lighting of lighting unit than suitable from viewing area
The cycle is short of the start to finish of sequence scanning.
In the inclusion above display device according to embodiments of the present invention of various preferred structures, positioned at the region of end side
The light period of the lighting unit of middle setting may be set to be disposed proximate to end side with lighting unit and shortens.
In the display device according to embodiments of the present invention including above-mentioned various preferred structures, positioned at the region of end side
The light intensity of the lighting unit of middle setting is set to be disposed proximate to this end side with lighting unit and increases.In such feelings
Under condition, each lighting unit can have luminance can controlled light source, and the lighting unit near the setting of end side
Light source can be driven to launch more bright light.In addition, each lighting unit can have the light source of controllable luminance, and
The density arranging light source in the lighting unit of setting in the region positioned at end side may be set to be set to lighting unit
Higher near end side.
In the display device according to embodiments of the present invention including above-mentioned various preferred structures, display device may also include
Optical fractionation device, the image for being displayed in display device is divided into the image of multiple viewpoints.
The structure of optical fractionation device is not particularly limited.As optical fractionation device, known component, example can be adopted
As, disparity barrier or the lens being represented by lens pillar.Optical fractionation device can have fixing construction, also can have movable
The construction of state change.
For example, the disparity barrier with fixture construction can pass through to adopt such as photoetching process and etching method using known material
Combination, include any one of various print processes of silk screen print method or ink jet printing method, include galvanoplastic and electroless plating method
Galvanoplastic or the known method of stripping method formed.On the other hand, having the disparity barrier of dynamic construction for example can be by adopting liquid
The light valve construction of brilliant material.As the lens with fixture construction, for example, known lens pillar can be adopted.In addition, conduct
There is the lens of dynamic construction, for example, can be using the gradient-index lens using liquid crystal material.
The main control section controlling display device can produce part, data by various circuit structures, for example by video signal
Driver and timing controller construction.The scanning circuit of scanning display apparatus can pass through to construct using shift register etc., and
The illuminator drive circuit driving illuminator can be constructed by shift-register circuit and light source driving circuit etc..Drive optics
The optical fractionation device drive circuit of segregation apparatuss can be constructed by shift-register circuit etc..These can adopt known circuit device
Part constructs.
[2. first embodiment]
First embodiment is related to the display device in the present invention.
Fig. 1 is display device according to the first embodiment perspective schematic view under virtual separated position.Fig. 2A is to shine
The schematic plan view of bright device.Fig. 2 B is schematic sectional view under the line A-A cutting state along Fig. 2A for the illuminator.
As shown in figure 1, including that there is the saturating of the viewing area 11 being sequentially scanned according to the display device 1 of first embodiment
Penetrate formula display device 10 and the illuminator 20 being arranged on after display device 10, it is single that illuminator 20 includes multiple illuminations
Unit 22, be arranged along direction that wherein viewing area 11 is sequentially scanned from end 21A side towards another end
Arrange on the direction of 21B side.
Let it be assumed, for the purpose of illustration, that the viewing area 11 of display device 10 is parallel to X-Z plane, and the beholder of image
In +Y direction.In addition, it is assumed that include the flat shape of light-emitting area 21 of one group of lighting unit 22 and viewing area 11 that
This correspond to, and and then each lighting unit 22 flat shape mutually the same.
In the viewing area 11 of display device 10, line direction is set（The X-direction of in figure）On M pixel 12 and row
Direction（The Z-direction of in figure）On N number of pixel 12, i.e. amount to M × N number of pixel 12.M arranges（Here, m=1,2 ..., M）With
N row（Here, n=1,2 ..., N）In pixel 12 be expressed as（m,n）Individual pixel 12 or pixel 12（m,n）.Pixel in m row
12 are represented by pixel 12m.Pixel in display device 10（M,N）Quantity be, for example,（1920,1080）.This applies equally to it
Display device in its embodiment.
Display device 10 is formed by active array type display panels.Although display panels for convenience of description
The monochromatic display of execution, but it is only for example.
Display device 10 includes front panel, rear board, liquid crystal material and other part, and front panel is set in the face of image
Beholder, rear board is set in the face of illuminator 20, and liquid crystal material is arranged between front panel and rear board.In order to illustrate
Convenient, in Fig. 1, display device 10 is shown as a panel.
Have so-called full run-down type structure illuminator 20 include multiple（Q）Lighting unit 22.Each lighting unit 22 from
Back illumination display unit 13, display unit 13 includes the part that viewing area corresponds to lighting unit 22.In lighting unit 22
Including light source controlled in units of lighting unit 22.
As shown in Figure 2 A and 2B, illuminator 20 includes housing 24 and the light source 23 with basal surface 24A and side surface 24B
（Red LED1 23R, green light emitting diode 23G and blue light emitting diode 23B）, light source 23 has groups of light-emitting diodes
Pipe, is arranged on basal surface 24A with corresponding to each lighting unit 22.In example shown in Fig. 2A and 2B, multi-group light-emitting two pole
Pipe is arranged in a lighting unit 22.HONGGUANG, green glow and blue light, therefore obtain the white light with excitation as illumination
Light.
As described later, lighting unit 22 is sequentially scanned.The light source 23 of the lighting unit 22 of scanning lights, and this light
It is transmitted through by the optical function piece 25 of the manufactures such as light diffusion sheet, to irradiate the display unit corresponding to lighting unit 22 from behind
13.
Illuminator is not limited to construction described above, and also preferably employs a kind of structure, and this structure is included by such as
The light guide plate of transparent material manufacture of acrylic resin and the light source being arranged on the side surface of light guide plate（So-called edge-light type
Structure）.
Fig. 3 is the concept map of the display device according to first embodiment.
Display device 1 is from the scanning being derived from the main control section 101 of outside signal, scanning display apparatus 10 to its input
The illuminator drive circuit 103 of circuit 102 and driving illuminator 20 drives.In FIG, such as main control section 101, sweep
The circuit of scanning circuit 102 and illuminator drive circuit 103 is shown without.
Input signal VD corresponding to image to be shown is input to main control section 101.Main control section 101 is according to defeated
Enter signal VD and produce video signal VS, order applies video signal VS to the data wire DTL of display device 10.
Main control section 101 also produces the scanning opportunity being controlled viewing area by scanning circuit 102（timing）Clock
Signal CLK1 and the clock signal clk 2 scanning opportunity being controlled lighting unit 22 by illuminator drive circuit 103.Main control
Part 101 can be formed by known circuit, for example, is formed by logic circuit, latch cicuit and shift-register circuit.Scanning electricity
Road 102 can be formed by the known circuit of such as shift-register circuit, and illuminator drive circuit 103 can be by such as shifting
The known circuit of register circuit and light source driving circuit is formed.
Scanning circuit 102 applies scanning signal, with therefore sequential scan viewing area 11 to scan line SCL order.More
For body, by-line ground execution line sequence scanning in the first embodiment（line-sequential scanning）.Scanning direction is Z
Direction.Illuminator drive circuit 103 order applies control signal with control line BCL, with therefore sequential scan lighting unit 22.
Line sequence scanning is not limited to by-line scanning.It is for instance possible to use such construction, wherein data wire be provided independently for
Corresponding to odd lines and even lines, and the line sequence scanning of two lines is executed based on the structure of display device simultaneously.That is, "
Line sequence scanning " scans multiple lines except by-line scans outer inclusion simultaneously.
Viewing area 11 including the pixel 12 being arranged to two-dimensional matrix is virtually divided into Q display unit 13.Work as separation
When state is represented by " OK " and " arranging ", viewing area 11 is divided into the display unit of Q row and string.
Flat shape due to each lighting unit 22 is identical, and viewing area 11 is equal to divide in principle.In this situation
Under, display unit 13 includes（N/Q）Row and the pixel 12 of M row.For example, when（M,N）=（1920,1080）, and during Q=20, display
Unit 13 includes 54 row and the pixel 12 of 1920 row.?（N/Q）In have after arithmetic point part in the case of, it can be suitable
It is assigned to display unit.
Fig. 4 is the schematic diagram for display device scanning is described.
Viewing area 11 is towards Z-direction sequential scan.Thus, when showing a frame, including in display unit 131In picture
Element 12 scans first, and then, the pixel 12 that each display unit 13 includes is with display unit 132,133…,13Q-1,13QOrder
Scanning.Stablize pixel status for the operation that new video signal is written to pixel 12 and thereafter, cycle regular hour
It is necessary.It is expressed as rewrite cycle when this cycle（rewriting period）And hold period is expressed as stable period
（settling period）When, the scanning of display device 10 may be schematically represented as shown in Figure 4.Further preferably write identical
Data twice to promote the stablizing of pixel status.In the case, for example, when completing the second write, start stable period.
In the first embodiment, the operation based on main control section 101 grade, from complete sequential scan display unit 13 until
The length of the waiting time that corresponding lighting unit 22 lights is set as that basis is swept at least in the region positioned at end side
Retouch the non-linear reduction of order of lighting unit 22.More specifically, this length is in the region positioned at end side with positioned at another
The non-linear reduction of order according to scanning lighting unit 22 in the region of one end side.First, in order to help understand the present invention,
Will explanation with reference to the operation of example and its problem, wherein the length of waiting time for constant the order with scanning lighting unit 22
Unrelated.
Fig. 5 is for the schematic diagram with reference to illuminator scanning in example is described.
According in the operation with reference to example, the length of waiting time is for constant with the order scanning lighting unit 22 no
Close.For the facility illustrating, the length with reference to the waiting time in example is assumed to from completing the scanning of display unit 13 until position
Display unit 13 in display unit 13 next line above is changed into time cycle of stable period.It is expressed as according with when the waiting time
Number taAnd the light period of lighting unit 22 is expressed as symbol tbWhen, the scanning of illuminator 20 may be schematically represented as Fig. 5
Shown.The scanning timing of the display device 10 shown in Fig. 4 shown in phantom in Fig. 5.
If the light period of each lighting unit 22 was included in the stable period in corresponding display unit 13,
Image in two frames on theory significance can not be visually recognized under overlap condition.However, when the light from lighting unit 22
When the light in source 23 reaches another lighting unit 22, the image in two frames can be visually recognized under overlap condition.Below, will
Illustrate with reference to Fig. 6 to Figure 10.
Fig. 6 is that the brightness illustrating the illuminator obtaining when the light source luminescent corresponding to the lighting unit in the first row divides
The schematic figure line of cloth.Fig. 7 is to illustrate corresponding to（Q/2）The illuminator brightness obtaining during the light source luminescent of row lighting unit
The schematic figure line of distribution.Fig. 8 be for illustrate lighting unit luminous and the Luminance Distribution of illuminator between the showing of relation
Meaning property figure line.
As shown in fig. 6, when corresponding to the first row lighting unit 221Light source 23 when lighting, lighting unit 221Surface on
Brightness highest.Then, from lighting unit 221The light of light source also reach lighting unit 222To 22Q, and Luminance Distribution is by scheming
Figure line in 6 represents.Transverse axis in figure line is arbitrary unit, wherein corresponds to lighting unit 221Light source 23 obtain when lighting
Maximum brightness value be set as 1.This applies equally to other accompanying drawings.
Corresponding to Q row lighting unit 22QThe Luminance Distribution that obtains when lighting of light source 23 be with respect to Fig. 6 upset point
Cloth.
As shown in fig. 7, when corresponding to（Q/2）Row lighting unit 22Q/2Light source 23 when lighting, lighting unit 22Q/2Table
Brightness highest on face.However, comparing with Fig. 6, due to the condition change of light reflection in the housing 24 of such as illuminator 20, maximum
Brightness reduces.Qualitatively, the highest brightness value on surface is disposed proximate to center with lighting unit 22 and reduces further.Come
From lighting unit 22Q/2The light of light source also reach lighting unit 221To 22Q/2-1And lighting unit 22Q/2+1To 22Q, and bright
Degree distribution is represented by the figure line in Fig. 7.
Therefore, corresponding to the luminous relation table and the Luminance Distribution of illuminator 20 between of the light source 23 of lighting unit 22
It is shown as shown in Figure 8.In fig. 8, lighting unit 221,222,22Q/2,22Q/2+1,22Q-1With 22QIn Luminance Distribution be shown as
Example, and further, lighting unit 222With 22Q/2Between setting certain lighting unit 22q1In Luminance Distribution and
Lighting unit 22Q/2+1With 22QBetween setting certain lighting unit 22q2In Luminance Distribution be again shown as example.
For example, when lighting unit 22 in Figure 51Light period when starting, display unit 131With 132It is in stable week
Phase.However, display unit 133To 13QIt is in rewrite cycle.Thus, display unit 133To 13QIt is in the video letter of wherein previous frame
Number it is written of state or the state of new video signal address period.
Fig. 9 is the illumination of the illuminated display unit illustrating to obtain when the light period of the lighting unit in the first row starts
The schematic figure line of the Luminance Distribution of device.Figure 10 is to illustrate to obtain when the light period of the lighting unit in Q row starts
The Luminance Distribution of the illuminator of illuminated display unit schematic figure line.
As shown in figure 9, corresponding to lighting unit 221Light source 23 when lighting, display unit 133To 13QCertain by radiation
The light of the intensity of degree.Thus, the dash area in the figure line of Fig. 9 shows the image in rewrite cycle, and this deteriorates image and divides
From characteristic.
On the other hand, when lighting unit 22QLight period when starting in Figure 5, display unit 131To 13QIt is completely in
Stable period.Therefore, as shown in Figure 10, the light of wherein illuminator 20 phenomenon of display image in rewrite cycle does not occur.
As described above, in the operation with reference to example, although lighting unit is scanned, there is image in rewrite cycle
Shown phenomenon.The degree of image in display rewrite cycle when applying the technology of first embodiment, can be mitigated.Under
Literary composition, will illustrate the operation of first embodiment with reference to figures 11 to Figure 13.
Figure 11 is the schematic diagram for explanation according to the illuminator scanning of first embodiment.Figure 12 A is for illustrating to join
Examine the schematic figure line of illuminator scanning and the relation between the waiting time in example.Figure 12 B is for the first enforcement is described
The schematic figure line of the scanning of illuminator and the relation between the waiting time in example.
In the first embodiment, positioned at an end 21A（Upper end region）The region of side and be located at another end
Portion 21B（Lower end region）In the region of side, waiting time ta' be set as non-linear being subtracted according to the order of scanning lighting unit 22
Little.
In with reference to example, waiting time taIt is constant, as illustrated in fig. 12.On the contrary, according to first embodiment, wait
Time ta' length be set as the lighting unit 22 in the first row1Middle maximum, as shown in Figure 12 B.Then, the waiting time sets
It is the non-linear reduction of order according to scanning lighting unit 22 in upper end region and lower end region.Although in upper end area
At mid portion region between domain and lower end region, the waiting time is constant, but the invention is not restricted to this example.
As noted previously, as the waiting time is set as non-linear reduction, from the illumination list near the setting of end 21A side
The cycle that the unit 22 luminous time lights to the lighting unit 22 near another end 21B side is shorter than sweeps from viewing area order
Retouch the cycle of start to finish.
Figure 13 is the photograph illustrating to be obtained when the light period of the lighting unit in the first row starts according to first embodiment
The schematic figure line of the Luminance Distribution of the illuminator of bright display unit.
For example, when lighting unit 22 in concern the first row1Point when starting for the light period when, show in first embodiment
The scanning mode of unit 13 is better than with reference to example.Thus, as shown in figure 13, compared with Fig. 9, can reduce in display rewrite cycle
The degree of image.This applies equally to the other lighting units 22 in upper end region.
In application setting above, the length of the waiting time of lighting unit 22 in upper end region and reference
Example is compared and can be fully ensured that.
Waiting time non-linear reduction only in upper end region can be set, or can set only medium in lower end region
Time for the treatment of non-linear reduction.
The deterioration of image stalling characteristic is inhibited in display device 1.Thus, also can be by alternately showing left eye figure
Picture and eye image and correspondingly change so-called glasses type optical shutter in display device 1 and show with superior images
The 3D rendering of quality.
Although the flat shape of lighting unit superincumbent explanation in be all identical, also can will be close to upper end and under
The flat shape of the lighting unit of end setting is arranged to the shape amplified.For explanation according to the modified example of first embodiment
The schematic diagram of illuminator scanning is as shown in figure 14.The concept map of the display device 1' of the modified example according to first embodiment is such as
Shown in Figure 15.In example shown in Figure 14 and Figure 15, using lighting unit 22 quilt for four row in wherein top and bottom
The illuminator 20' of one lighting unit 22' displacement.
[3. second embodiment]
Second embodiment is the modification of first embodiment.Second embodiment is with the difference of first embodiment, positioned at end
In the region of portion side, the light period of the lighting unit of setting is disposed proximate to end side with lighting unit and shortens.
The perspective schematic view of the display device 2 according to second embodiment is similar to by replacing Fig. 1 institute with display device 2
The display device 1 showing is obtained, and according to the concept map of the display device of second embodiment similar to by being set with display
Standby 2 replace the display device 1 shown in Fig. 3 and by replacing illuminator drive circuit 103 with illuminator drive circuit 203
Obtained.Illuminator drive circuit 203 drives the lighting unit 22 being arranged at the region of end side, thus with
Lighting unit 22 is disposed proximate to end side, and illumination period shortens.
As shown in Fig. 8 of reference in first embodiment, the brightness of illuminator 20 is in the region positioned at end 21A side
In tend to towards end 21A higher.Similarly, this brightness is inclined to towards end 21B in the region of another end 21B side
In higher.Therefore, when scanning lighting unit 22, being visually recognized to be brightness increases towards end from core.
Thus, illuminator drive circuit 203 drive the lighting unit 22 being arranged in the region of end side so that
It is disposed proximate to end side with lighting unit 22 in a second embodiment, light period shortens.
Figure 16 is the schematic diagram for explanation according to the illuminator scanning of second embodiment.Figure 17 A is for root is described
Schematic figure line according to the light period length of the illuminator of first embodiment.Figure 17 B is according to the second enforcement for explanation
The schematic figure line of the light period length of illuminator of example.
Shorten, institute because the light period of lighting unit 22 is set as being disposed proximate to end side with lighting unit 22
With the waiting time t in the upper end region shown in Figure 16a" value when may be set to be longer than the wait described in first embodiment
Between ta'.In a second embodiment, light period tb" length shorten towards end 21A in upper end region side, and in lower end
Portion's area side shortens towards end 21B.
As shown in Figure 17 A, the light period t of lighting unit 22bLength be constant, with first embodiment in scanning
Sequentially unrelated.On the contrary, light period tb" length towards end shorten, as shown in the curve 1 of Figure 17 B.
Thus, be wherein identified as in brightness vision being compensated towards the higher tendency in end from core, with because
This improves the brightness uniformity wanting display image.Further, since the waiting time t in upper end regiona" value may be set to grow
In first embodiment, therefore improve image stalling characteristic.
[4. 3rd embodiment]
3rd embodiment is the modification of second embodiment.The difference of 3rd embodiment is, is arranged in end side
The light intensity of the lighting unit in region, the light intensity launched by lighting unit, it is set as being set to lean on lighting unit
Close end side and strengthen.More specifically, the light intensity launched by the light source belonging to lighting unit, obtains when light source luminescent
Light intensity, be set as being disposed proximate to end side with lighting unit and strengthen.
First, by the main points of explanation 3rd embodiment.
Figure 18 A and 18B is in a second embodiment when the light period of the lighting unit in end regions is long for explanation
Degree is set as the schematic figure line changing in the characteristic obtaining when shortening further.
In superincumbent second embodiment, have been described that image stalling characteristic can be by shortening light period towards end
tb" and improve, as shown in the curve 1 of Figure 17 B.Thus, in order to improve the target of image stalling characteristic further it is desirable to towards end
Light period t is shortened in portion furtherb", to have the characteristic shown in the curve 2 shown in Figure 18 A.
If however, the curve 1 according to Figure 18 A passes through to control light period tb" keep the uniformity of brightness of image,
As light period tb" when being controlled according to curve 2, the uniformity of brightness of image deteriorates in end side.Specifically, when luminous week
Phase tb" when being controlled according to curve 2, brightness of image reduces in end side.Transverse axis standardization in Figure 18 B illustrates, wherein for example whole
Individual surface shows that the situation that flat-white shows is set as 1.This applies equally to Figure 19 B.
Thus, in the third embodiment, the light intensity of lighting unit is set as compensating the reduction of the brightness of image of end side.
Figure 19 A and 19B is the schematic figure of the characteristic variations obtaining when the intensity variation of lighting unit for explanation
Line.
When luminous, the light intensity of the lighting unit of end side setting is controlled to and is disposed proximate to end with lighting unit
Side and when increasing, the figure line of the light intensity in lighting unit has the characteristic shown in the dotted line of Figure 19 A.Transverse axis mark in Figure 19 A
Standardization illustrates, the situation wherein when light quantity is constant in each unit is set as 1.
Thus, or even in light period tb" when the curve 2 according to Figure 18 A controls, in the epigraph brightness of end side
Reduce and be also compensated as shown in Figure 19 B.Therefore, image stalling characteristic can be improved further, and brightness of image can be prevented uniform
The reduction of property.
As described above, having been described that the main points of 3rd embodiment.Carry out the photograph with the controllable light source of luminance
The light intensity of bright unit controls, for example to be driven and be disposed proximate to end side by current peak during control driving light source
Lighting unit light source launching brighter light.Also such construction can be applied, be provided with the region positioned at end side
In lighting unit in the density of setting of light source be set as being disposed proximate to end side with lighting unit and higher.
Explanation is provided with being that the light source of the lighting unit near end side is driven to launch the construction of relatively bright light
Example（Hereinafter referred to as the first example）.The perspective schematic view of the display device 3A according to the first example can be by being set with display
Standby 3A replaces the display device 1 shown in Fig. 1 and obtains.The concept map of the display device according to the first example can be by using display device
3A replaces the equipment 1 shown in Fig. 3 and is obtained by replacing illuminator drive circuit 103 with illuminator drive circuit 303.
Illuminator drive circuit 303 drives the light source of the lighting unit being disposed proximate to end side to launch relatively bright light.
Figure 20 A is the schematic plan for the structure of the illuminator according to the first example in 3rd embodiment is described
Figure.Figure 20 B is for the schematic figure line that the driving current of the light source driving illuminator sets is described.
As shown in fig. 20b, the light source 23 being disposed proximate to the lighting unit 22 of end side is designed as illuminating by change
Unit 22 drives the current value adopting during the light source 23 of illuminator 20 to launch relatively bright light for unit.Specifically, drive
The current value used by light source 23 of dynamic lighting unit 22 is set as being disposed proximate to end side with lighting unit 22 and increases.?
In shown example, current value has lower relation of plane with the symbol of lighting unit：Symbol 221>Symbol 222>Symbol 223>Symbol
224>Symbol 225, symbol 225=symbol 226...=symbol 22Q-4, symbol 22Q-4<Symbol 22Q-3<Symbol 22Q-2<Symbol 22Q-1<Symbol
Numbers 22Q.How current value changes suitably can determine according to specification of display device etc..
Next, the density of setting of light source explanation being provided with the lighting unit in the region positioned at end side
It is set as with lighting unit near the higher construction example in end side（Hereinafter referred to as the second example）.Display device 3B's
Perspective schematic view and can be by being put with display device 3B in Fig. 1 and Fig. 3 according to the concept map of the display device of the second example
Switching display devices 1 and with illuminator 30 replace illuminator 20 and obtain.
Figure 21 A is the schematic plan for the structure of the illuminator according to the second example in 3rd embodiment is described
Figure.Figure 21 B is the schematic figure line of the change of density of setting of the light source for illuminator is described.Rise for ease of illustration
See, the light source 23 including light emitting diode 23R, 23G and 23B is expressed as single light source in Figure 21 A.
Illuminator 30 according to the second example is to have full run-down type structure with illuminator 20 identical mode.As figure
Shown in 21A, the lighting unit 22 being arranged in the region of end side is designed as making the density of setting of light source 23 with illumination
Unit is disposed proximate to end side and increases.For example, per unit area belongs to quantity of light source and the lighting unit of lighting unit 22
Symbol there is lower relation of plane：Symbol 221>Symbol 222>Symbol 223>Symbol 224>Symbol 225, symbol 225=symbol 226…=
Symbol 22Q-4, symbol 22Q-4<Symbol 22Q-3<Symbol 22Q-2<Symbol 22Q-1<Symbol 22Q.How the density of setting of light source changes can
Specification according to display device etc. suitably determines.
Illuminator 30 has the full run-down type structure in the second example, however, illuminator also can have such as edge-light
Type structure.Below, the 3rd example as the second instance modification will be described.The perspective schematic view of display device 3C and according to
The concept map of the display device of the 3rd example can replace display device 1 and with shining by using display device 3C in Fig. 1 and Fig. 3
Bright device 30A displacement illuminator 20 obtains.
Figure 22 is the schematic perspective under virtual decomposing state for the illuminator of the 3rd example according to 3rd embodiment
Figure.For the sake of for ease of illustration, show the setting of the light source 33 in Figure 22 in a simplified manner.
Illuminator 30A includes light guide plate 31, light source 33 and optical function piece 25, and light guide plate 31 is for example by transparent propylene
Acid resin manufactures, and light source 33 is set to enter end face 32A and 32B and by for example white luminous in the face of the light extending in z-direction
Diode manufactures, and optical function piece 25 is set to the light output surface 34 in the face of light guide plate 31.
On light guide plate 31 surface contrary with light output surface 34, for example, unshowned scattered reflection pattern is set.Dissipate
Penetrate reflection graphic patterns be set to further away from light enter end face 32 setting region in closeer, for eliminate because away from light entrance end face
32 light intensities causing uneven.Further preferably extend prism pattern in the X direction（prismatic pattern）It is formed at
On light guide plate 31, to improve the light stalling characteristic between adjacent illumination unit.
Figure 23 A is one, the illuminator for explanation according to the illuminator structure of the 3rd example in 3rd embodiment
The schematic plan view dividing.Figure 23 B is the schematic figure line of the change of density of setting of the light source for illuminator is described.
As shown in fig. 23 a, in the lighting unit 22 of setting in the region positioned at end side, the setting of light source 33 is close
Degree is set to be disposed proximate to end side with lighting unit and higher.For example, in Z-direction, per unit length belongs to lighting unit
22 quantity of light source 33 and the symbol of lighting unit have lower relation of plane：Symbol 221>Symbol 222>Symbol 223>Symbol 224
>Symbol 225, symbol 225=symbol 226...=symbol 22Q-4, symbol 22Q-4<Symbol 22Q-3<Symbol 22Q-2<Symbol 22Q-1<Symbol
22Q.How the density of setting of light source changes suitably can determine according to specification of display device etc..
[5. fourth embodiment（Other）]
Fourth embodiment is also the modification of first embodiment.The differring primarily in that of fourth embodiment, additionally provide for
The image showing on the display apparatus is divided into the optical fractionation device of multiple visual point images.
Figure 24 be display device according to fourth embodiment virtual separately in the state of perspective schematic view.
As shown in figure 24, the viewing area 11 also being included according to the display device 4 of fourth embodiment there is sequential scan
Transmission display device 10 and the illuminator 20 being arranged on display device 10 back side, illuminator 20 includes multiple lighting units
22, be arranged along the direction of wherein sequential scan viewing area 11 from an end 21A towards the side of another end 21B
Arrange upwards.Then, it is further provided the image of display in display device 10 is divided into the optical fractionation of multiple visual point images
Equipment 40.
Due to display device 10 and illuminator 20 structurally and operationally with explanation in first embodiment structurally and operationally
Substantially the same, the description thereof will be omitted.
Viewing areas WA shown in Figure 24L、WACAnd WAREach in, although in fourth embodiment image viewpoint
Quantity will be described as four viewpoints A1、A2、A3And A4, but it is only for example.The quantity of the quantity of viewing areas and viewpoint can root
Design according to display device 4 suitably sets.When the distance between viewpoint is set as about 65 [mm], and the disparity map at each viewpoint
As, when being set as Observable, the image of beholder's identification display of image is stereo-picture.
Figure 25 is the concept map of the display device according to fourth embodiment.
Optical fractionation device drive circuit 404 operates according to the clock signal clk 3 from main control section 401, suitably changes
Become after a while by description the first open/close portion divide the 41, second open/close portion divide 42 and the 3rd open/close portion divide 43
State.Thus, the image in display device 10 to be shown in is divided into the image of each viewpoint.Shown in other structures and Fig. 3 the
One embodiment similar, and therefore the description thereof will be omitted.
As shown in figure 24, optical fractionation unit 40 includes extending in vertical direction（The Z-direction of in figure）Go up and be arranged in water
Square to（The X-direction of in figure）On multiple first open/close portion divide the 41, second open/close portion divide 42 and the 3rd open/
Close part 43.First open/close portion divide 41 and second open/close portion divide 42 with the 3rd dozen of opening/closing plugging therebetween
Part 43 is arranged alternately in the horizontal direction.Barrier forming region 44 is by the multiple first dozen of ON/OFF arranging in the horizontal direction
Closing part divide the 41, second open/close portion divide 42 and the 3rd open/close portion divide 43 formation.In the fourth embodiment, setting P
First open/close portion divides 41, and arranges（P-1）Individual second open/close portion divides 42.3rd open in fourth embodiment/
Close the quantity of part 43 and the second open/close portion divide 42 identical.Pth（Here, p=1,2 ..., P）Individual first dozen of opening/closing
Part 41 is represented by symbol 41p.This applies equally to the second open/close portion and divides 42.First open/close portion divides 41, second
Open/close portion divide 42 and the 3rd open/close portion divide 43 can be collectively denoted as open/close portion to divide 41,42 and 43." P " and "
Relation between M " will illustrate later referring to Figure 27.
Figure 26 is the partial cross section obtaining when optical fractionation device is along the virtual plane cutting parallel to X-Y plane
Figure.
In fig. 26, symbol PW represent the first open/close portion divide 41 or second open/close portion divide 42 in the horizontal direction
（The X-direction of in figure）On width, and symbol SW represents that the 3rd open/close portion divides 43 width in the horizontal direction.?
In horizontal direction, the first open/close portion adjacent one another are divides pitch between 41 and 41 and adjacent one another are in the horizontal direction
The second open/close portion divide the pitch between 42 and 42 identical, and represented by symbol RD.First open/close portion divides 41
And second open/close portion to divide between 42 pitch in the horizontal direction be RD/2.
Optical fractionation device 40 includes a pair of light-transmissive substrate 430A and 430B for example being formed and setting by glass substrate
Liquid crystal material layer 436 between substrate 430A and 430B, has multiple open/close portion and divides 41,42 and 43, be convertible into
Light state or shading status.Then, optical fractionation device 40 by set predetermined open/close portion be divided into light transmission state and
Other open/close portion are divided into shading status and the separate image in display device 10 to be shown in.
More specifically, the transparent common electrode 434 for example being manufactured by ITO is formed at substrate 430A in the face of liquid crystal material layer
In 436 whole surface, and for example it is formed thereon by both alignment layers 435A that polyimides manufacture.In addition, for example by ITO system
Make and be formed to correspond to first transparency electrode 431, second transparency electrode 432 and that each open/close portion divides 41,42 and 43
Three transparency electrodes 433 are formed above substrate 430B to liquid crystal material layer 436.First transparency electrode 431, second transparency electrode
432 and the 3rd transparency electrode 433 can be referred to collectively as transparency electrode 431,432 and 433.
The flat shape of these transparency electrodes 431,432 and 433 is approximately bar shape.Including these transparency electrodes
431st, on 432 and 433 substrate 430B, form the alignment film 435B for example being manufactured by polyimides.And, transparent common electrode
434 and transparency electrode 431,432 and 433 can be configured to displaced from one another.
In the first alignment film 435A on the surface of liquid crystal material layer 436, for example, by known to such as friction treatment
Method is become with X-axis on 335 degree of direction in X-Z plane, and execution orientation is processed.On the other hand, in the second alignment film 435B face
On surface to liquid crystal material layer 436, X-Z plane become execution orientation on 45 degree of direction process with respect to X-axis.
Figure 26 shows and does not produce any electric field between transparent common electrode 434 and transparency electrode 431,432 and 433
State.In this case, form the direction of the molecular axis of liquid crystal molecule 436A of liquid crystal material layer 436（Also referred to as " direction is sweared
（director）"）Become about 335 degree in substrate 430A side in X-Z plane with respect to X-axis.Then, the direction of molecular axis gradually becomes
Change, and become about 45 degree in substrate 430B side with X-axis in X-Z plane.Liquid crystal material layer 436 is with so-called TN（Twisted-nematic）Mould
Formula operates.
For ease of description, the unshowned light polarizing film surface according to display device 10 stacking, from display
The polarization axle of the light of device 10 outgoing is assumed to become 45 degree with respect to the X-axis of X-Z plane.In substrate 430B in the face of display device 10
Surface on, stack light polarizing film 437B, and substrate 430A in the face of viewing areas side surface on, stack light polarizing film 437A.
Light polarizing film 437B is stacked as making polarization axle become 45 degree with respect to the X-axis of X-Z plane, and light polarizing film 437A is stacked as making polarization axle
Become 335 degree with respect to the X-axis of X-Z plane.It is perpendicular to one another that light polarizing film 437A and 437B are set to its polarization axle（Crossed Nicol
（cross nichol））State.In addition, being stacked on unshowned light polarizing film and light polarizing film on the surface of display device 10
437B can be configured to jointly enjoy.
All of first transparency electrode 431 is electrically connected by unshowned distribution.Similarly, all of second transparency electrode
432 are electrically connected by unshowned distribution, and further, all of 3rd transparency electrode 433 is electrically connected by unshowned distribution
Connect.
Fixing voltage（For example, 0 volt）It is applied to transparent common electrode 434, and independent voltage is according to optical fractionation
The operation of device drive circuit 404 is applied separately to first transparency electrode 431, second transparency electrode 432 and the 3rd transparency electrode
433.
By execute when not producing any electric field between explanation transparent common electrode 434 and transparency electrode 431,432 and 433
Operation, in other words, the voltage with identical value is applied to execution when transparent common electrode 434 and transparency electrode 431,432 and 433
Operation.In the case, polarization direction is had by the light that light polarizing film 437B is incident on liquid crystal material layer 436, by liquid crystal
Molecule 436A changes 90 degree and is transmitted through light polarizing film 437A.Thus, optical fractionation device 40 operates as so-called normal white mode.
In the case of using fixing optical fractionation device, as described later, " the resolution of display device
（resolution）/ number of views " is the resolution of stereo-picture, and therefore, the resolution of stereo-picture reduces.Real according to the 4th
Apply example, by using dynamic optical segregation apparatuss, the reduction of the resolution of stereo-picture can be mitigated.
Particularly, in order to show a stereo-picture, two images are shown on display device 10（First field picture and
Two field picture）.Then, the operation according to main control section 401 and optical fractionation device drive circuit 404, in display first
During image, the only first open/close portion divides 41 to be set as light transmission state, and the only second dozen ON/OFF when showing the second field picture
Closing part divides 42 to be set as light transmission state.Divide 41,42 and 43 to be in light transmission state by setting all of open/close portion, also may be used
Show common image.
Figure 27 is to meet condition to allow the light being transmitted through the pixel that the first open/close portion is divided towards position for explanation
Viewpoint A in viewing areas1To A4The schematic diagram propagated.
It is assumed that for the sake of for convenience of description（m+1）Individual pixel 12m+1With（m+2）Individual pixel 12m+2Border and sight
See region WACCentral point between middle viewpoint A2 and A3 is arranged on and divides 41 by the first open/close portionpCenter and extend in Y
On the virtual line in direction.Here, pixel pitch is represented by ND [mm].In addition, display device 10 and optical fractionation device 40 it
Between distance represented by Y1 [mm], and optical fractionation device 40 and viewing areas WAL、WACAnd WARThe distance between by Y2
[mm] represents.Additionally, viewing areas WAL、WACAnd WARIn the distance between viewpoint adjacent one another are represented by DP [mm].In addition,
As described above, the first open/close portion divides 41 pitches in the horizontal direction and the second open/close portion to divide 42 in the horizontal direction
On pitch by RD [mm] represent.
In figure 27, the first open/close portion divides 41 to be in light transmission state, and the second open/close portion divides 42 and
Three open/close portion divide 43 to be in shading status.In addition, in order to clearly show that light transmission state and shading status, shading status
Under open/close portion divide and be marked shade.This other figure that will describe after being equally applicable to.
For ease of description it is assumed that the first open/close portion divide 41 and second open/close portion divide 42 width
PW is sufficiently small, and divides the track at 41 centers to illustrate by noting light by the first open/close portion.
When dividing 41 by the first open/close portionpCenter and when extending virtual line in the Y direction and being used as benchmark, arrives
Pixel 12m+3The distance at center represented by X1, in center viewing areas WAcThe distance of viewpoint A1 represented by X2, to the right side
Side viewing areas WARThe distance of viewpoint A1 represented by X3.When from pixel 12m+3The light transmission of outgoing passes through first dozen of opening/closing
Part 41pAnd towards center viewing areas WACViewpoint A1 propagate when, according to geometric similarity, meet equation below（1）Represent
Condition.
Y1：X1=Y2：X2（1）
Here, X1=1.5 × ND, and X2=1.5 × DP, thus, contemporary fashionable, equation（1）It is expressed as equation below
（1'）.
Y1：1.5×ND=Y2：1.5×DP（1'）
When meeting above-mentioned equation（1'）When, geometrically obvious from pixel 12m+2、12m+1With 12mThe light of outgoing is towards viewing
Region WACViewpoint A2、A3And A4Propagate.
In addition, when from pixel 12m+3The light transmission of outgoing divides 41 by the first open/close portionp+1And towards viewing areas
WARViewpoint A1 propagate when, according to geometric similarity, meet following equation（2）The condition representing.
Y1：（RD-X1）=（Y1+Y2）：X3-X1（2）
Here, X1=1.5 × ND, and X3=2.5 × DP, thus, when these substitute into, equation（2）It is expressed as following side
Journey（2'）.
Y1：（RD-1.5×ND）=（Y1+Y2）：（2.5×DP-1.5×ND）（2'）
When meeting above-mentioned equation（2'）When, geometrically obvious from pixel 12m+2、12m+1With 12mThe light of outgoing is towards viewing area
Domain WARViewpoint A2、A3And A4Propagate.
In addition, from pixel 12m+3、12m+2、12m+1With 12mThe light of outgoing divides 41 by the first open/close portionp-1And towards
Left side viewing areas WALViewpoint A1、A2、A3And A4The condition propagated passes through suitable reversion about by the first open/close portion
Divide 41p+1The explanation of light and be similarly achieved, and therefore the description thereof will be omitted.
Apart from Y2 with apart from the value of DP, predetermined value is surely arrived according to the specification of display device 4.In addition, the value root of pixel pitch ND
Structures shape according to display device 10.According to equation（1'）With（2'）, it is to obtain equation below apart from Y1 and pitch RD（3）With
（4）.
Y1=Y2×ND/DP（3）
RD=4×DP×ND/（DP+ND）（4）
For example, when pixel pitch ND of display device 10 is 0.500 [mm], it is 1500 [mm] apart from Y2, and apart from DP
During for 65.0 [mm], it is about 11.5 [mm] apart from Y1, and pitch RD is about 1.95 [mm], it is about the four of pixel pitch ND value
Times.Thus, above-mentioned " M " and " P " has relation
It is reduced to M/4 as described previously for by the horizontal resolution of optical fractionation device each visual point image detached.Cause
This, in optical fractionation device, by change the first open/close portion divide 41 and second open/close portion divide 42 state, can
Mitigate the decline of horizontal resolution.
Figure 28 is to be transmitted through the second open/close portion for explanation to divide and towards viewpoint A1To A4The light of the pixel propagated
Schematic diagram.
In Figure 28, the second open/close portion divides 42 to be in light transmission state, and the first open/close portion divides 41 and
Three open/close portion divide 43 to be in shading status.
In the case, for example, from pixel 12m+5、12m+4、12m+3With 12m+2The light transmission of outgoing passes through second dozen of ON/OFF
Closing part divides 42pAnd towards center viewing areas WACViewpoint A1、A2、A3And A4Propagate.Thus, in Figure 27 and 28, in the face of each
The pixel of viewpoint moves two pixels.Therefore, by with reference to the state shown in Figure 27 and the state shown in Figure 28, each viewpoint
The horizontal resolution of image is M/2.
Figure 29 is the schematic diagram being operated according to illuminator scanning and the optical fractionation device of fourth embodiment for explanation.
In the fourth embodiment, a frame period was made up of the first field duration and the second field duration.In the first field duration, light
The first open/close portion learning segregation apparatuss 40 divides 41 to be in light transmission state, and the second open/close portion divides 42 and the 3rd dozen
Opening/closing part 43 is in shading status.In addition, in the second field duration, the second open/close portion of optical fractionation device 40
Points 42 are in light transmission state, and the first open/close portion divide 41 and the 3rd open/close portion divide 43 to be in shading status.
Display device 10 and the frame period of illuminator 20 explanation in the operation in each field duration with first embodiment
In operation be similar to.It is suppressed that the deterioration of image stalling characteristic in the image of display in display device 10 in each field duration.
Thus, because decreasing the mistake on the parallax information of the image of visual identity at each viewpoint, can visually identify good
Stereo-picture.
As described above, although a preferred embodiment of the invention has been described, but the invention is not restricted to embodiment.Implement
The configuration and structure of the display device described in example are example, and can suitably change.
In the fourth embodiment, extend in vertical direction although the open/close portion of optical fractionation device divides to be formed
The shape of row, but, for example, wherein open/close portion can be adopted to divide inclination to extend with respect to vertical direction angulation
Construction.In the case, by arranging pin hole（pin-hole）Shape open/close portion is divided with the connection that inclines towards each other, and can adopt it
Middle formation all tilts the construction that the open/close portion extending is divided.
The present invention is also configured to as follows.
（1）A kind of display device, including
Transmission display device, has the viewing area of sequential scan, and
Illuminator, is arranged on this display device back side, including multiple lighting units, is arranged along this viewing area suitable
Sequence scanning direction on end side to the direction of another end side arrange,
Wherein after completing sequential scan and include the display unit corresponding to the part of this lighting unit of this viewing area,
This lighting unit is in luminance in predetermined light period, and this lighting unit is sequentially swept according to this of this viewing area
Retouch from end side towards another end side sequential scan, and
Set from the length being accomplished to the waiting time that this correspondence lighting unit lights of the sequential scan of this display unit
It is according to the non-linear reduction of order scanning this lighting unit at least in the region positioned at end side.
（2）Above（1）Described in display device,
The length of wherein waiting time is set as being located at another end side in the region neutralization positioned at end side
Region according to scan this lighting unit the non-linear reduction of order.
（3）Above（1）Described in display device,
Wherein from the luminous time of the lighting unit positioned at end side to the lighting unit positioned at another end side
The luminous cycle can be shorter than the cycle of the start to finish of sequential scan in this viewing area.
（4）Above（1）Described in display device,
Wherein be located at end side region in setting lighting unit light period be set as this lighting unit the closer to
This end side setting and shorter.
（5）Above（1）Described in display device,
The light intensity being wherein located at this lighting unit of setting in the region of this end side is set as that this lighting unit more leans on
This end side nearly and higher.
（6）Above（5）Described in display device,
Wherein each lighting unit has light source, and its luminance can be controlled, and
The light source of lighting unit is driven to light the closer to this end side brightlyer.
（7）Above（5）Described in display device,
Wherein each lighting unit has light source, and its luminance can be controlled, and
In this lighting unit being arranged in the region of this end side, the density of setting of light source is set as this illumination list
Unit is bigger the closer to this end side.
（8）Above（1）Described in display device, also include
Optical fractionation device, for being divided into multiple visual point images by the image of display in this display device.
（9）Above（1）Described in display device,
Wherein this illuminator has full run-down type structure.
（10）Above（1）Described in display device,
Wherein this illuminator has edge-light type structure.
（11）Above（1）Described in display device,
Wherein this illuminator has three or more lighting units.
（12）Above（1）Described in display device,
Wherein this display device is formed by display panels.
（13）A kind of display device, including
Display device；And
Illuminator, has multiple lighting units,
Wherein this lighting unit starts to send out after completing the viewing area sequential scan of this lighting unit faced by display device
Light, and
Start the length of luminous waiting time from the sequential scan completing this display unit to this corresponding lighting unit
It is not constant.
The application comprises Japanese Priority Patent Application JP2012- of on April 18th, 2012 submission Japan Office
Related subject disclosed in 094420, entire contents are incorporated herein by reference.
Those skilled in the art it should be appreciated that in the range of claims or its equivalent, according to
Design needs and other factors, can carry out various modifications, combination, partly combine and replace.
Claims (12)
1. a kind of display device, including：
Transmission display device, has the viewing area of sequential scan；And
Illuminator, is arranged on this display device back side, and including multiple lighting units, the plurality of lighting unit is arranged along this
The direction that viewing area is sequentially scanned on end side to the direction of another end side arrange,
Wherein after completing the sequential scan of the display unit corresponding to the part of this lighting unit including this viewing area, should
Lighting unit is in luminance in predetermined light period, and this lighting unit according to the sequential scan of this viewing area from
One end side is sequentially scanned towards another end side, and
It is set as from the length completing the waiting time that the sequential scan of this display unit lights until this lighting unit corresponding
Non-linearly reduced according to the order scanning this lighting unit at least in the region positioned at end side,
The length of wherein waiting time is set as being located at the area of another end side in the region neutralization positioned at end side
Non-linearly reduced according to the order scanning this lighting unit in domain,
Mid portion region between the region and the region of another end side described of one end side, during this wait
Between length be constant.
2. display device according to claim 1,
The time wherein lighting from this lighting unit positioned at end side is sent out to the lighting unit positioned at another end side
The cycle of light is shorter than the cycle of the start to finish of sequential scan in this viewing area.
3. display device according to claim 1,
The light period being wherein located at this lighting unit of setting in the region of end side is set as this lighting unit the closer to this
End side is shorter.
4. display device according to claim 1,
The light intensity being wherein located at this lighting unit of setting in the region of this end side is set as this lighting unit the closer to this
End side is bigger.
5. display device according to claim 4,
Wherein each lighting unit has light source, and the luminance of this light source can be controlled, and
The light source of this lighting unit arranging the closer to this end side is driven to light brightlyer.
6. display device according to claim 4,
Wherein each lighting unit has light source, and the luminance of this light source can be controlled, and
In this lighting unit being arranged in the region of this end side, the density of setting of light source is set as that this lighting unit is got over
Bigger near this end side.
7. display device according to claim 1, also includes：
Optical fractionation device, the image for being displayed in this display device is divided into the image for multiple viewpoints.
8. display device according to claim 1,
Wherein this illuminator has full run-down type structure.
9. display device according to claim 1,
Wherein this illuminator has edge-light type structure.
10. display device according to claim 1,
Wherein this illuminator has more than three lighting units.
11. display devices according to claim 1,
Wherein this display device is formed by display panels.
A kind of 12. display devices, including：
Display device；And
Illuminator, has multiple lighting units,
Wherein this lighting unit starts to send out in this display device after the completion of the viewing area sequential scan of this lighting unit
Light, and
The length starting the luminous waiting time to this lighting unit corresponding from the sequential scan completing this display unit is not
Constant,
The length of wherein waiting time is set as being located at the area of another end side in the region neutralization positioned at end side
Non-linearly reduced according to the order scanning this lighting unit in domain,
Mid portion region between the region and the region of another end side described of one end side, during this wait
Between length be constant.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP2012-094420 | 2012-04-18 | ||
| JP2012094420A JP5919992B2 (en) | 2011-04-27 | 2012-04-18 | Display device |
| JP2012-094420 | 2012-04-18 |
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| Publication Number | Publication Date |
|---|---|
| CN103377632A CN103377632A (en) | 2013-10-30 |
| CN103377632B true CN103377632B (en) | 2017-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310124953.4A Expired - Fee Related CN103377632B (en) | 2012-04-18 | 2013-04-11 | Display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105139810A (en) | 2015-09-28 | 2015-12-09 | 京东方科技集团股份有限公司 | Display driving method and device, and display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1399158A (en) * | 2001-07-19 | 2003-02-26 | 夏普株式会社 | Light-emitting unit and LCD with the same |
| CN101114426A (en) * | 2006-07-24 | 2008-01-30 | 光远科技股份有限公司 | LCD device and scanning method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007133123A (en) * | 2005-11-10 | 2007-05-31 | Epson Imaging Devices Corp | Illumination device, electro-optical apparatus, and electronic equipment |
| JP4702459B2 (en) * | 2009-01-29 | 2011-06-15 | ソニー株式会社 | Liquid crystal display device assembly and driving method of liquid crystal display device assembly |
| JP2011112754A (en) * | 2009-11-25 | 2011-06-09 | Nippon Seiki Co Ltd | Display device |
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2013
- 2013-04-11 CN CN201310124953.4A patent/CN103377632B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1399158A (en) * | 2001-07-19 | 2003-02-26 | 夏普株式会社 | Light-emitting unit and LCD with the same |
| CN101114426A (en) * | 2006-07-24 | 2008-01-30 | 光远科技股份有限公司 | LCD device and scanning method |
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| CN103377632A (en) | 2013-10-30 |
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